Comparison
PromptStash vs PromptBox
Two prompt managers for AI power users. One stores your prompts in the cloud, the other keeps them local in your browser. Both offer a free plan and Pro at a similar monthly price. Here's the full comparison.
PromptBox
30,000+ users
// feature comparison
| Feature | PromptStash | PromptBox |
|---|---|---|
| Supported AI Services | 19+ (ChatGPT, Claude, Gemini, Grok, Perplexity, etc.) | ChatGPT focused |
| Variable Interpolation | Yes — {{goal}}, {{topic}}, dynamic placeholders | No |
| Folder Organization | Yes — unlimited nested folders | Yes — collections |
| Offline Access | Yes — works without internet | No — requires cloud connection |
| Data Storage | 100% local (Chrome storage) | Cloud-based (their servers) |
| Pin Favorites | Yes — pin up to 10 templates | No |
| Tag-Based Search | Yes — search by name or tags | Yes — search by text |
| Quick Insert | Yes — inject directly into AI chat | Yes — copy/paste |
| Import / Export | Yes — JSON backup | No |
| Price | Free (10 prompts) / Pro $5.99/mo | Free / Pro $6.99/mo |
| Privacy | No data leaves your browser | Prompts stored on their servers |
| Customer Support | Responsive | Users report unanswered emails |
// why choose PromptStash
19+ AI Platform Support
Works across ChatGPT, Claude, Gemini, Grok, Perplexity, Copilot, Google AI Studio, and more. PromptBox primarily targets ChatGPT.
Variable Placeholders
Create dynamic templates with {{variables}} that prompt you for values at insert time. Build one template, customize it for every use. PromptBox has no variable system.
100% Local & Private
Your prompts never leave your browser. PromptBox stores everything on their cloud servers, raising privacy concerns for sensitive or proprietary prompts.
Try It Free, No Account
Start with 10 prompts free — no signup, no card, no time limit. PromptBox's free plan and Pro both run through their cloud; PromptStash keeps everything in your browser either way.
Offline Access
PromptStash works without internet because everything is stored locally. PromptBox requires a cloud connection to access your prompts.
// why choose PromptBox
Larger User Base
30,000+ users provide more community-tested workflows and a longer track record.
Cloud Sync
Access your prompts from any device by logging in. PromptStash's local storage means prompts live on one browser.
Web Dashboard
PromptBox offers a web app at promptbox.ai for managing prompts outside the browser.
// verdict
If you use multiple AI platforms and care about privacy, PromptStash is the clear choice. Variable interpolation alone is a feature PromptBox doesn't offer at any price. PromptBox's cloud sync is useful if you switch devices often, but storing prompts on external servers is a dealbreaker for teams working with proprietary content. Both are subscriptions at a similar monthly cost — the real question is whether your prompts live in your browser or on someone else's server.
// faq
Does PromptStash work with Claude?
Yes. PromptStash supports 19+ AI platforms including Claude, ChatGPT, Gemini, Grok, Perplexity, Copilot, and Google AI Studio. Prompts can be inserted directly into any supported chat interface.
Can I sync PromptStash across devices?
PromptStash stores data locally for maximum privacy. You can use the JSON export/import feature to manually transfer prompts between devices.
Is PromptStash a subscription?
Yes — Pro is $5.99/month, and you can cancel anytime. The free plan holds 10 prompts with no account and no time limit, so you can decide whether Pro is worth it before paying anything.
What are variable placeholders?
Variables like {{goal}} or {{topic}} are dynamic fields in your prompt templates. When you insert a template, PromptStash asks you to fill in each variable — so one template can serve hundreds of different use cases.
Are my prompts safe with PromptStash?
Yes. PromptStash stores everything in your browser's local storage. No data is sent to external servers. Your prompts are as private as files on your computer.
Ready to try PromptStash?
Install PromptStash for free and see how it compares.